Behavior
Mostrando 37-48 de 16547 artigos, teses e dissertações.
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37. A Defected Ground Structure Based on Matryoshka Geometry
Abstract A Defected Ground Structure, DGS, based on matryoshka geometry is described in this paper. The proposed DGS geometry is outlined and initial design equations are presented. Four prototypes, with resonant frequencies 2.17 GHz, 2.44 GHz, 2.99 GHz and 3.73 GHz, were designed, fabricated and characterized, observing a good agreement between measured and
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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38. Assessment of Covariance Selection Methods in High-Dimensional Gaussian Graphical Models
ABSTRACT The covariance selection in Gaussian graphical models consists in selecting, based on a sample of a multivariate normal vector, all those pairs of variables that are conditionally dependent given the remaining variables. This problem is equivalent to estimate the graph identifying the nonzero elements on the off-diagonal entries of the precision mat
Trends in Computational and Applied Mathematics. Publicado em: 2022
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39. An A Posteriori Error Estimator for a Non Homogeneous Dirichlet Problem Considering a Dual Mixed Formulation
ABSTRACT In this paper, we describe an a posteriori error analysis for a conforming dual mixed scheme of the Poisson problem with non homogeneous Dirichlet boundary condition. As a result, we obtain an a posteriori error estimator, which is proven to be reliable and locally efficient with respect to the usual norm on H d i v ; Ω × L 2 Ω. We remark t
Trends in Computational and Applied Mathematics. Publicado em: 2022
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40. The relationship between cognitive development, behavior indicators, and Personal, Social, and Emotional Development in Pre-school
Resumo O artigo investiga as potencialidades de um questionário respondido por professores sobre comportamento e habilidades sócio-emocionais de crianças matriculadas na pré-escola – período inicial da escolarização obrigatória no Brasil. Baseado nesse instrumento, descreve a elaboração de indicadores de desatenção, hiperatividade-impulsividade
Ensaio: Avaliação e Políticas Públicas em Educação. Publicado em: 2022
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41. Gas permeability and compressive strength evaluation of porous Al2O3 supported membrane
Abstract The aim was to investigate the feasibility of using a device to characterize permeability in porous substrates with low gas flux. Al2O3 supports were prepared by dry pressing using 1 to 3 wt% of polyethylene glycol (PEG) as a pore-forming agent. The green body was partially sintered at 1300 ºC. CO2 gas was used to measure both the pressure loss and
Cerâmica. Publicado em: 2022
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42. Herbert Simon’s Epistemological Itinerary on the Limits of Rationality
Resumo O objetivo deste artigo é investigar o itinerário epistemológico de Herbert A. Simon acerca dos limites da racionalidade registrados em seu livro Administrative Behavior , de 1947. A pesquisa, fundamentada no materialismo, abordou o itinerário epistemológico, a partir de duas categorias de análise: as fontes principais ao estabelecimento dos lim
Organizações & Sociedade. Publicado em: 2022
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43. Analysis of dielectric and electrical transport properties of NdFeAsO ceramic
Abstract The iron-based ceramic NdFeAsO was synthesized by the solid-state reaction method. The tetragonal crystal structure was confirmed at room temperature through the X-ray diffraction technique. The dielectric characteristics i.e. dielectric constant (εr) and loss tangent (tanδ) of the sample were studied at a wide range of temperature and frequencies
Cerâmica. Publicado em: 2022
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44. Thermophysical and Transport Properties of the BaCl2-CsCl High Temperature Ionic Liquid Mixtures
High temperature ionic liquids (HTILs) densities and transport properties for mixtures BaCl2 CsCl, x(BaCl2) = 0-1, have been studied as a function of composition and temperature. In terms of Arrhenius theory, the temperature correlation of all measured properties was made and discussed. Thermodynamic properties (isothermal compressibility, molecular volume,
Journal of the Brazilian Chemical Society. Publicado em: 2022
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45. Self-injurious behavior and factors related to suicidal intent among adolescents: a documentary study
Resumo Esta pesquisa documental quantitativa, de caráter descritivo e exploratório, investigou o perfil de adolescentes com comportamento autolesivo e variáveis de risco e proteção relacionadas à intenção suicida relatada em um Centro de Atenção Psicossocial Infantojuvenil (CAPS IJ) de uma região metropolitana do sul do país. Dados de 139 adolesc
Psico-USF. Publicado em: 2022
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46. Flexible pavement with mining waste proposal - execution and analysis of an experimental section
Abstract The extraction of iron ore has a fundamental role in the Brazilian economy. However, such activity generates considerable volumes of waste whose disposal, even if regulated and licensed, has a significant environmental impact. The worldwide concern for sustainable practices along with the urgency for measures to mitigate environmental damage, justif
REM - International Engineering Journal. Publicado em: 2022
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47. 3D Simulation and Artificial Neural Networks Application in the Diffusion Study of Champignon Mushroom/Solution Interface During the Salting
The influence of the film formed during the salting of champignon mushrooms with brine containing NaCl and KCl was modeled using the finite elements method (FEM). It was verified that the film formed on the mushroom surface had a greater influence in the static salting since the diffusion of the ions was 7.5-fold smaller in this system than in the stirred sa
Journal of the Brazilian Chemical Society. Publicado em: 2022
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48. Managing Contagion: COVID-19, public health, and reflexive behavior
RESUMO Este artigo caracteriza uma pandemia como um tipo de contágio e descreve um contágio como um sistema de feedback reflexivo de dois níveis e duas direções. Nesse sistema, as opiniões de especialistas para gerenciar uma pandemia podem atuar como profecias autorrealizáveis devido à forma como influenciam a formação de crenças coletivas. No ent
Brazilian Journal of Political Economy. Publicado em: 2022